High-efficient energy-saving and surfacing layer well-forming self-shielded flux-covered welding wire and manufacture method

US10610978B2 · kind B2 · utility

Assignees

• JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN
• China (Ningbo) Innovation Academy of Intelligent Equipment Co., Ltd. · CN
• ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD. · CN

Inventors

• Dashuang Liu · Zhenjiang, CN
• Weimin Long · Zhengzhou, CN
• Ping Wei · Hefei, CN
• Mingfang WU · Zhenjiang, CN
• Lei Zhang · Shanghai, CN

Key dates

• Filing date: May 12, 2017
• Grant date: Apr 7, 2020
• Expiry date: Mar 13, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K35/40
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

It discloses a high-efficient energy-saving and surfacing layer well-forming self-shielded flux-cored welding wire. A low-carbon steel strip is used as an outer cover, and a flux core comprises the following components in percentage by mass: 42-60% high carbon ferrochrome with a particle size of 80 meshes, 10-18% ferrosilicon, 16-25% ferroboron, 2-8% rare earth silicon, 2-8% graphite, 1-4% aluminum magnesium alloy, 2-5% manganese powder and the balance of iron powder, wherein the graphite, the aluminum magnesium alloy and the manganese powder are all added with two particle sizes including 60 meshes and 200 meshes, and the weight of the flux core powder accounts for 49-53% of the total weight of the welding wire.